Orchestrated By, Directed By – Frank Fernández (tracks: A5, B3, B4), Hilario Durán (tracks: A1, A3, B1), José María Vitier (tracks: B2, B5)
Photography – Filippo Billoti
Producer – Silvio Rodríguez
Written-By – Silvio Rodríguez
In Spain it will be released in late April 1982 known as "Edición Urgente" (Urgent Issue) for the Integra seal. With a gray cover with Silvio in shirt and blue jeans and an explanatory text on the disc contents, with special mention of the tracks "Por Quien Merece Amor" and "Unicornio"
Soon after, the standard edition of the album was release, with front and back with oneiric topic, that is what has remained the official editing.
First Pressing, Limited Edition
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